Methyl 5-(chloromethyl)-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-2-acetate
Methyl 3-(chloromethyl)-4-(difluoromethyl)-2-(trifluoromethyl)pyridine-6-acetate
Methyl 4-(chloromethyl)-3-(difluoromethyl)-2-(trifluoromethyl)pyridine-6-acetate
Methyl 3-(chloromethyl)-2-(difluoromethyl)-6-(trifluoromethyl)pyridine-5-acetate